EP 0959787 B1 20071017 - UNDER WATER TREATMENT
Title (en)
UNDER WATER TREATMENT
Title (de)
ELEKTROCHIRURGISCHES GERÄT FÜR UNTERWASSERBEHANDLUNGEN
Title (fr)
TRAITEMENT SOUS L'EAU
Publication
Application
Priority
- GB 9701632 W 19970617
- GB 9612993 A 19960620
Abstract (en)
[origin: WO9748346A1] An electrosurgical instument, which is used for the treatment of tissue in the presence of an electrically-conductive fluid medium, comprises an instrument shaft (10), and an electrode assembly (12) at one end of the shaft. The electrode assembly (12) comprises a tissue treatment electrode (14) and a return electrode (18) which is electrically insulated from the tissue treatment electrode by means of an insulation member (16). The tissue treatment electrode (14) has an exposed end for treating tissue, and the return electrode (18) has a fluid contact surface which is spaced from the tissue treatment electrode in such a manner as to define, in use, a conductive fluid path that completes an electrical circuit between the tissue treatment electrode and the return electrode. The electrode assembly (12) is provided with a plurality of apertures (14a) in the region of the tissue treatment electrode (14), through which apertures vapour bubbles and/or particulate material can be aspirated from the region surrounding the tissue treatment electrode.
IPC 8 full level
A61B 18/00 (2006.01); A61B 18/12 (2006.01); A61B 18/14 (2006.01); A61M 1/00 (2006.01)
CPC (source: EP US)
A61B 18/1485 (2013.01 - EP US); A61B 2018/00291 (2013.01 - EP US); A61B 2018/126 (2013.01 - EP US); A61B 2018/1472 (2013.01 - EP US); A61M 1/85 (2021.05 - EP US)
Citation (examination)
- US 5300087 A 19940405 - KNOEPFLER DENNIS J [US]
- FRIEDMAN J.: "The technical aspects of electrosurgery", ORAL SURGERY, vol. 36, no. 2, 1973, pages 177 - 187
Designated contracting state (EPC)
BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
WO 9748346 A1 19971224; AR 007447 A1 19991027; AU 3102297 A 19980107; CA 2255881 A1 19971224; DE 69738220 D1 20071129; DE 69738220 T2 20080717; EP 0959787 A1 19991201; EP 0959787 B1 20071017; ES 2293657 T3 20080316; GB 9612993 D0 19960821; JP 2000512526 A 20000926; US 6210405 B1 20010403; US 6482202 B1 20021119; ZA 975375 B 19971222
DOCDB simple family (application)
GB 9701632 W 19970617; AR P970102742 A 19970623; AU 3102297 A 19970617; CA 2255881 A 19970617; DE 69738220 T 19970617; EP 97926142 A 19970617; ES 97926142 T 19970617; GB 9612993 A 19960620; JP 50249898 A 19970617; US 20202598 A 19981208; US 75667601 A 20010110; ZA 975375 A 19970618